General Description

The TH09 integrates one relative humidity sensor and one high-accuracy temperature sensor. The device is encapsulated in a SMD and DIP package and includes an I²C slave interface for communication with a master processor.

Applications

The TH09 applications include:
•Building Automation / Smart home / HVAC1
◦ Indoor air quality detection
◦ Demand-controlled ventilation
◦ Smart thermostats
• Home appliances
◦ Air cleaners / purifiers
◦ Refrigerators, washing machines, dishwashers, dryers
• Mobiles / Wearables
• IoT devices
• Portable devices for personal health and wellness
• Weather stations

Key Benefits and Features

The benefits and features of TH09, Relative Humidity and Temperature Sensor with I²C
Interface are listed below:

Figure 1: Added Value of Using TH09

Ultra-accurate:  Temperature sensor (±0.15°C)

                          Relative humidity sensor (Typ:±2.0%RH)

Wide sensing range: Temperature operating range (–40°C to 100°C)

                                  Relative humidity operating range (0% to100%)

Wide operating voltage: 1.71V to 3.60V

Small foot-print: 10.8mm x 9.1mm x 1.55mm

Industry standard two-wire interface: Standard (100kbit/s) and fast (400kbit/s)I²C

Low power: Automatic low-power standby when notmeasuring

                   Active current: 6.6μA @ 1Hz (1.8V)

                   Standby current: 40nA

Cost effective: Digital pre-calibrated relative humidityand temperature sensor

                        Output directly in %RH and Kelvin

                         Wide supply voltage range

High reliability: Long-term stability